# this file is part of refractiveindex.info database
# refractiveindex.info database is in the public domain
# copyright and related rights waived via CC0 1.0

REFERENCES: |
    <a href="https://refractiveindex.info/download/data/2017/sumita_2017-02-02.agf">SUMITA Zemax catalog 2017-02-02</a> (obtained from <a href="http://www.sumita-opt.co.jp/en/download/">http://www.sumita-opt.co.jp</a>)<br>See also <a href="https://refractiveindex.info/download/data/2016/sumita_2016-02-01.pdf">SUMITA optical glass data book</a>
DATA:
  - type: formula 3
    wavelength_range: 0.36 1.55
    coefficients: 3.1544352 -0.014806744 2 0.027996766 -2 0.00079379644 -4 -1.0802615e-05 -6 2.172329e-06 -8
  - type: tabulated k
    data: |
        0.330 1.2679E-05
        0.340 5.2060E-06
        0.350 2.2240E-06
        0.360 1.0630E-06
        0.370 5.6641E-07
        0.380 3.2533E-07
        0.390 2.1856E-07
        0.400 1.5324E-07
        0.420 9.4918E-08
        0.440 7.0738E-08
        0.460 6.2765E-08
        0.480 4.2250E-08
        0.500 2.7950E-08
        0.550 2.1939E-08
        0.600 2.8734E-08
        0.650 2.5928E-08
        0.700 2.2326E-08
        0.800 1.2745E-08
        1.060 1.6887E-08
        1.500 2.3897E-08
        2.000 4.6837E-07
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 4.79e-06 1.51e-08 -1.35e-10 6.25e-07 7.77e-10 0.229
    nd: 1.79916
    Vd: 43.5
    glass_code: 804436
    density:
      - value: 4710
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.8e-06
      - temperature_range: 293 573
        value: 7.2e-06
    dPgF: -0.008
    resistance:
        climatic: 1.0
        acid: 3.0